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1. Main microprocessor : uPD784036GC831 (X33 : IC5)
1-1 Microprocessor periphery block diagram(X33)
IC9
RE/SERVO
CXA2523AR
IC12
MOTOR DRIVER
BD6601KVT
1-2 Pin description
Pin No.
Name
1
XLAT
2
XRST
3
XSTBY
4
LDON
5
BEEP
6
BASS BOOST
7
RESET
8
VDD
9
X2
10
X1
11
VSS
12
LCD DATA
13
BEMFW
14
BEMFV
15
BEMFU
16~18
S1~3
19
NC
CIRCUIT DESCRIPTION
IC7
IC5
XSTBY
SEIN
u-COM
uPD784036GC
S1-S3
BEMFU,V,W
ED1
com
LCD(SET)
SP PWS CHG1 CHG2 ADP CHGOK BATT
POWER SUPPLY CONTROL/RECHARGEABLE CIRCUIT
I/O
Function
O
DSP IC (CXD2655BR) LATCH signal
O
DSP IC (CXD2655BR) HARD RESET signal
O
RF/SERVO IC (CXA2523AR) STAND BY signal
O
PICK UP LASER on/off signal
O
BEEP output/ to HP AMP
O
Analog bass boost control
–
µ-com RESET
–
µ-com +power supply
O
µ-com SYSTEM CLOCK OSC port (out)
I
µ-com SYSTEM CLOCK OSC port (in)
–
µ-com GND
O
LCD remocon display data serial output
I
SLED MOTOR comparator signal(W)
I
SLED MOTOR comparator signal(V)
I
SLED MOTOR comparator signal(U)
SLED MOTOR control signal
O
for DRIVER input port
O
–
DSP/ATRAC
CXD2655BR
SERIAL XLAT XRST FOK SQSY SENS
BASS BOOST
BEEP
IC8
MUTE SW
PSW
EPDO
IC10
EPDI
EPCS
EPSK
SEG1-19
Description
L: LIGHTING
L: BOOST ON
DMC-K3
Q6
BEEP MIXER
Q17
BassBoost
HEAD PHONES AMP
LA4801V
E2PROM
AK93C45AV
H/L
H: NON LIGHTING
H: BOOST OFF
5
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